Answer:
56 ways
Step-by-step explanation:
Number of ways is given by n combination r (n!/(n - r)!r!)
n = total number of students = 8, r = the number of summer courses = 3
Number of ways = 8 combination 3 = 8!/(8-3)!3! = 8!/5!3! = 8×7×6×5!/5!×6 = 8×7 = 56 ways
Answer:
B. y=-4x+2
Step-by-step explanation:
y-6=-4x-4
y=-4x-4+6
y=-4x+2
Answer:
A straight line through the origin, and with a positive gradient (sloping from bottom left to top right)
Answer:
4
Step-by-step explanation:
(19-5)/3.5
14/3.5
4
To find answers like this, you have to divide the percentage into the number given so:
45 / .60 = 75
She teaches 75 math students